GRN2-118: Create a setting to require authentication to join a room (#541)

* Create a setting to require authentication to join a room

* Apply comments

app/models/setting.rb

@@ -39,6 +39,8 @@ class Setting < ApplicationRecord
         Rails.configuration.primary_color_default
       when "Registration Method"
         Rails.configuration.registration_method_default
+      when "Room Authentication"
+        false
       end
     end
   end